Soldato
- Joined
- 19 Jan 2006
- Posts
- 4,724
- Location
- Guernsey

I don't get it.
The speed of light is 299,792,458 metres per second. This camera claims to be taking 1 trillion images in 1 second.
That would mean that each frame would only be able to capture objects that are under 30 cms away, anything past 30cms from the camera should just be blackness.
Or am I doing it wrong? (if so please rxplain as I'm genuinely interested).
P.S At work so haven't actually watched the video
I don't get it.
The speed of light is 299,792,458 metres per second. This camera claims to be taking 1 trillion images in 1 second.
That would mean that each frame would only be able to capture objects that are under 30 cms away, anything past 30cms from the camera should just be blackness.
Or am I doing it wrong? (if so please rxplain as I'm genuinely interested).
P.S At work so haven't actually watched the video
I don't get it.
The speed of light is 299,792,458 metres per second. This camera claims to be taking 1 trillion images in 1 second.
That would mean that each frame would only be able to capture objects that are under 30 cms away, anything past 30cms from the camera should just be blackness.
Or am I doing it wrong? (if so please rxplain as I'm genuinely interested).
P.S At work so haven't actually watched the video
i wonder if the slowmoguys will ever get hold of a camera like that

Think of it as like water coming from your tap. You don't have to wait for it to come all the way from the resovoir every time you turn the tap on as there's already some in the pipe.
In this case there is already light on it's way towards the camera lense, it just gets picked up by the detector in that particular trillionth of a second.
Same thing works for normal cameras. The light from the sun takes about 8 mins to reach earth. You dont need an exposure 8 mins long to pick up light from the sun though (becuase you're seeing the light that was emitted 8 mins ago)
To use misterPK's tap analgoy in when you first turned the tap on you got blue water then after 10 seconds you got green water, if you only turned the tap on for 9 seconds you wouldn't see the green water because the tap hasn't been on long enough for it to come through...
The difference here is that the light is 'flowing' all of the time.
The water is not moving in a pipe until you turn the tap on, but light is always travelling regardless of whether or not the camera is capturing it.
The background is dark so that you can see the light travel through the bottle.Looking at the video, it seems I may be right as the things they've taken films of (the Coke bottle and the tomato) are both are within 30cm of the lens (assuming no zoom is being used) and there is darkness in the background.